Phonograph-stop.



M. ADAIR.

PHONOGRAPH STOP.

APPLICATION mas JULY 30. I9I5.

Patented July 4,1916. 3 SHEETSSHEET I.

M. ADAIR.

PHONDG'RAPH SI0P.. APPLICATION man JULY 30, 1915.

Patented July 4, 1916.

a swans-sum 2..

8 vwe wfoz M. ADAIR. PHONOGRAPH STOP.

APPLICATION FILED JULY 30,1915.

Patented July 4, 1916.

3 SHEETSSHEET 3.

' form of a braking element, was mounted on MONTAGUE ADAIR, OF NEW YORK, N. Y.

PHONOGRAPH-STOP.

Specification of Letters Patent.

Patented July 4;, 1916..

Application filed July 30, 1915. Serial, No. 42,733.

To all whom it may concern:

Be it known that I, MONTAGUE ADAIR, a citizen of the United States, and a resident of the borough of Brooklyn, in the county of Kings, city and State of New York, have invented certain new and useful Improvemerits in Phonograph-Stops, of which the following is a specification.

The present invention relates generally to stop mechanism for phonographs or the like in which there is a rotatable element carrying a record in disk form having a zone of grooves, and a movable element, here the tone arm, which has a motion with respect to the rotatable element during the operation of the machine and which carries the usual sound reproducing stylus.

In an application filed on the 11th of January 1915, Serial No. 1556, there was disclosed a construction in which a pivotally supported member, there taking the the sound box and normally held in inactive or inoperative position by means of a tilting latch, which tilting latch had a normal bias. Associated with these arts was a non-playing follower or control er engaging the grooves of the record and which preventedthe latch from being tilted until the movable element had moved across the zone of grooves, after which the said latch would release the pivotally supported member or braking element and the latter would then engage with the face of the record.

' The present invention is an improvement on the construction shown in the said application and has more particularly for its ob ject means whereby a number of the parts comprising the stop or return mechanism may be restored automatically to their normal position by some manipulation of a part of the ,phonogra-ph necessary during the operation thereof.

Accordingly one feature of this invention is the provision of means whereby the lifting of the sound box' or the outer end of the tone arm to position a new record will shift the center of gravity of the parts comprising the stop or return mechanism, thereby restoring them to their original position. Further, the invention consists in a fingerhold whereby the said elements -may be maintained in the position which they have assumed when lowering the sound box to play the next record.

In connect1on with the foregoingjmeans are provided for impeding the movement of the tone arm to prevent undue movement thereof after the sound reproducing stylus has completed playing the record. It is obvious that if such means were not present the sound reproducing stylus would, if the phonograph and consequently the tone arm is slightly tilted in one direction, slide inward toward the center of the record, which would be an objectionable feature.

In the said application Serial No. 1556 the relation between the sound reproducing stylus and the non-playing follower was such that the non-playing follower would have completed its traverse across the zone of grooves before thesound reproducing stylus had finished its traversing movement. This necessitated very fine adjustment to insure the tilting of the latch at the proper moment, as it can be readily seen that unless the adjustment was very fine, the latch might readily be released before the sound reproducing stylus had finished playing the record.

Accordingly another feature sitioning of the sound reproducing stylus with respect .to the non-playing follower, the arrangement being such that when the sound reproducing stylus has completed its traversing movement across the zone of grooves, the non-playing follower will still be in engagement with the zone of grooves and the continued rotation of the record then serves eventually to tilt and release the braking device. This insures a complete playing of the record before the braking element operates.

Another feature of the invention is an improved braking apparatus in which a pivotally supported member on the sound box engages the face of the record and lifts the sound reproducing stylus off. the record but instead of applying the brake directly to the face of the record, the said pivotally supported element is provided with a roller whereby the continued rotation of the record causes a return traversing movement of the tone arm so that the latter is moved transversely of the record preferably out of playing position and eventually on to braking device, which on account of the weight of the tone arm or sound box engages the" record carrier and thus stops the rotation:- The means controlling the reof the present mventlon resides in the relative polease of the pivotally supported member is H in turn controlled by the grooves in. the rec'- ord so that, irrespective of the extent of the zone of grooves of the record, the device will operate -automatically when the end of the record is reached.

In the accompanying drawings the invention is disclosed in a concerte and preferred form from which, however, changes may be made without departing from. the spirit and scope of the invention as set forth in the appended claims, and I particularly wish to emphasize that many of the features of the present application are applicable to the structure shown in my said prior application in which the pivotally supported memher on the sound box acts as the braking element. p

In said drawings: Figure 1 is a plan view showing a phonograph of a conventional type with my invention attached in position. Fig. 2 is a side elevation of the outer end of the tone arm showing that portion of the stop mechanism which is carried by the sound box and showing also a portion of the record carrier and the braking element of the stop mechanism associated therewith; the parts are shown as they appear during the playing of a record. 3 is a view substantially like Fig. 2 but showing less of the machine and with the device tripped and in the act of effecting the return traversing movement of the sound box. Fig. 4 is a view looking in the direction of the arrow 4, Fig. 8. Fig. 5 is a detail view of the bracket by means of which my device is attached to the sound. box. Fig. 6 is a view partly in section of said bracket and showing also the tilting guide and the controlling element extending therethrough. Fig.

7 is a detail view showing the tone arm resting on the braking element to actuate the latter. Fig. 8 is a more complete view than Fig. 7, showing the braking element engaging the record carrier, and the tone arm and elements carried thereby engaging the braking element. Fig. 9 is a detail View showing the means for impeding the traversing movement of the tone arm and showing the latter indicated diagrammatically. Fig. 10 is a view similar to Fig. 4 showing a modification.

Similar characters of reference .indicate corresponding parts in the different views.

1 is a rotatable record carrier carrying a record 2 of disk form and having a zone of grooves 3 extending between the beginning of the record, adjacent the periphery of the same, and the end of the record near the center thereof. 4 is the usual. tone arm having a pivotal connection 5 in it so that the outer end 6 thereof supporting the sound box may be swung up and placed on the supporting clip 7 in a known'manner when changing from one record to the other. The sound box has secured to it in a suitable manner the bracket 8 on which the attachment com prising parts of my invention is mounted. The bracket 8 consists of an. annular main member 9 which extends on one side of the 'sound box and a projecting extension-10 which passes underneath the sound box and has an arm 11 which rises on the other side of the sound box.

Connected to the member 9 is a bearing portion 12- which is bent backward upon itself and extends forwardly of the sound box. Pivotally supported in the arm 11 is the member 13 which has a normal bias in one direction, that is to say, in a downward direction, and which in the present pre ferred form is provided with a roller 14 at its lower end which will engage the face of the record 3. The member 13 also has a shoe 15 which comes in contact with the face of the record when the said member is released and which is preferably of very soft rubber'so that the movement of the member 13 in striking the record may be softened as much as possible. Suitable stops as 16 are provided on the pivotally supported member 13 adapted to engage with the stops 1? on the arm 11.

18 indicates the sound reproducing stylus. 19 is a tilting guide mounted for tilting on the bearings 20 in the member 12. Extending through said guide is a sliding member 21 the lower end of which is in the form of a non-playing follower 22, here shown as a brush, and the upper end 23 of which is weighted so as to maintain a bias of the parts in a certain direction while the record is playing. Extending from the tilting guide 19 is a finger-hold 24 whose function Will appear as the specification proceeds. The tilting guide 19 is provided with a latch 25 which serves to hold the member 13 with the roller 14 in its elevated position so long as the non-playing follower 22 is in engagement with the record. and therefore prevented from being tilted.

Adjacent to the record carrier 1 is a brake 26 pivotally supported at 27 and having a supporting ledge 28 and an upwardly extending receiving portion 29 preferably faced with rubber 30. v

Located in the path of the traversing movement of the tone arm is an impeding means, taking here the form of a bell crank 31 pivoted at 32 and ii iving a weighted portion 33 and an upstanding .arm 34 against which the tone arm 4 comes in contact and which prevents undue movement of thetone arm after the sound reproducing stylus has completed playing the record.

The last described feature is made necessary because of the relative arrangement of the sound reproducing stylus 18 and the non-playing follower 22. These parts are so arranged with respect to each other that the sound reproducing. stylus will complete record and eventually the sound reproducing stylus will reach the innermost grooves in the record. The rotation of the record will continue. Meanwhile the tone arm will have engaged the impeding means 31 which will restrain any undue inward movement of the tone arm. The non-playing follower will still be in engagement with the grooves of the record and will therefore keep the latch from tilting, but eventually the rotating movement of the record will cause the tilting latchto be overbalanced, thereby causing the latch to disengage the end of the member 13 and permitting the latter to move into engagement with the face of the record. The continued rotating movement of the record will now act upon the roller 14 to rotate the latter and this rotation will have the effect of causing a return transverse movement of the tone arm, thereby moving it transversely of the record until the roller 14 is moved completely ofi the-record and comes to rest upon the ledge 28. This will also have brought the tone arm up on the receiving portion 29, thereby actuating the brake member 26 to engage the under side of the record carrier, thus stopping the same. It should be added that when the member 13 was released and brought into engagement with the record, the sound reproducing stylus 18 was lifted out of en'- gagement with the record. I wish it to be understood that the roller 14 need not necessarily carry the tone arm off the record. It

may simply traverse the record a certain distance and stop the rotation of the record by the weight of the tone arm. Different results can be obtained by adjusting the pitch of the roller 14:.

If the outer end 6 ofthe tone arm is now turned around its pivotal support 5 and brought to rest on the bracket 7, it is evident other, and the latch 25 wi l fall in behind the outer end of 13. When it is now desired .to

' play a record again, the outer end of the tone arm will be lowered andthe elements carried thereby will be brought into engagement with the record. jIn order to maintain' the parts in their restored position the finger-hold 24 is grasped at the time that the parts are'positioned for playing. In Fig. 10 is shown, a modification of the invention, which consists in dispensing with the fingerhold 24 mountedon the tilting guide 19. Instead of having this member 24, I provide a fingerhold 50 which is stationary with the sound box; This form of the invention is more conv ient than the" other because when returni g the parts to playing position the operator naturally grasps both the fingerhold 50and the weight 28 thereby keeping the latter in its raised position. This leaves the sound reproducing stylus in full view of the operator and does not necessitate a rising movement of the.

member 21 in the tilting guide when lowering the device into engagement with the rec- 7 What is claimed, is:

1. The combination with a phonograph having a rotatable record carrier for supporting a record in disk form having a zone of grooves, and a tone arm having a sound reproducing stylus, of means, normally inoperative, for automatically lifting the sound reproducing stylus off the record and for moving the tone arm transversely of the record out of playing position, and means engaging the record grooves for rendering said automatic means operative upon the.

completion of the playing of the record irrespective of the extent of the zone, of grooves in the record. i

2. The combination with a phonograph having a rotatable record carrier-for supporting a record in'disk form having a zone" of grooves, and atone arm having a sound reproducing stylus, of means, normally i11- operative, for automatically lifting the :sound reproducing stylus 0d the record and for moving the tone arm transversely of the record out of playing position, means engaging the record grooves for rendering said automatic means operative upon the com-- pletion of the playing of the record irreq spective of the extent of the zone of grooves in the record, and means for stopping the rotation of the record carrier controlled by the transverse movement oi the tone arm out of playing position. 1

3. The combination With a phonograph having a rotatable record carrier for supporting a record in disk form having a zone of grooves, and a tone arm having a sound reproducing stylus, of means carried by the tone arm, normally inoperative, forautomatically lifting the sound reproducing stylus oil the record and for moving the tone arm transversely of the record out of playing position, and means controlled by the record grooves for rendering said automatic means operative upon the completion of the playing of the record irrespective of the extent of the zone of grooves in the record.

at. The combination with a phonograph having a rotatable record carrier for vsupporting a record indisk form having a zone of grooves. Id. a tone arm having a-s gund having a rotatable record carrier for sup-.

reproducing stylus, of means carried by the tone arm, normally inoperative, for automatically lifting they sound reproducing stylus off the record and for moving the tone arm transversely of the record outof playing position, means controlled by the ,record grooves for rendering said automatic means operative upon the completion of the playing of the record irrespective of the extent of the zone of grooves in the record, and means for stopping the rotation of the record carrier controlled by the transverse movement of the tone arm out of playing position.

5. The combination with a phonograph porting a record in disk form having a zone of grooves, and a tone arm having a sound reproducing stylus, of means, normally inoperative, for automatically engaging with the record to lift the sound reproducing stylus off the record and for moving the tone arm transversely of the record out of playing position, and means controlled by the record grooves for rendering said automatic means operative upon the completion of the playing of the record irrespective of the ex tent of the zone of\ grooves in the record.

6. The combination With a phonograph having a rotatable record carrier for supporting a record in disk form having a zone of grooyes, and a tone arm having a sound reproducing stylus, of means, normally inoperative, for automatically engaging with the record to lift the sound reproducing stylus off the record and for moving the tone arm transversely of the record out of playing position, means controlled by the record grooves for rendering said automatic means operative upon the completion of the playing of the record irrespective of the extent of the zone of grooves in the record, and means for stopping the rotation of the record carrier controlled by the transverse movement of the tone arm out of playing position.

7. The combination with a phonograph having a rotatable record carrier for sup. porting a record in disk form having a zone of grooves, and a tone arm having a sound reproducing stylus, of means carried by the tone arm, normally inoperative, for automatically engaging with the record to lift the sound reproducing stylus off the record and for moving the tone arm transversely of the record out of playing position, and means controlled by the record grooves for rendering saidautomatic means operative upon the completion of the playing of the record irrespective of the extent of the zone of grooves in the record.

8. The combination with a phonograph having a rotatable record carrier for supporting a record in disk form having a' zone of grooves, and a tone armv having a sound reproducing stylus, of means carried by the tone arm, normally inoperative, for automatically engaging with the record to lift the sound reproducing stylus off the record and for.mov ing the tone arm transversely of the record out of playing position, means controlled by the record grooves for rendering said automatic means operative upon the completion of the playing of the record irrespective of the extent of the zone of grooves in the record, and means for stopping the rotation of the record carrier controlled by the transverse movement of the tone arm out of playing position.

9. The combination with a phonograph having a rotatable record carrier for supporting a record in disk form having a zone of grooves, and a tone arm having a sound reproducing stylus, of a member having a roller, normally inoperative, for automatically engaging the record to lift the sound reproducing stylus off the record and for moving the tone arm transversely of the record by the rotation thereof out of playing position, and means controlled by the record grooves for rendering said member and roller operative upon the completion of the playing of the record irrespective of the extent of the zone of grooves in the record. 10. The combination with a phonograph. having a rotatable record carrier for supporting a record in disk form having a zone of grooves, and a tone arm having a sound.

reproducing stylus, of a member having a roller, normally inoperative, for automatically engaging the record to lift the sound reproducing stylus off the record and for moving the tone arm transversely of the record by the rotation thereof out of playing position,.means controlled by the record grooves for rendering said member and roller operative upon the completion of the playing of the record irrespective of the extent of the zone of grooves in the record, and means for stopping the rotation of the record carrier controlled by the transverse movement of the tone arm out of playing position. v

11. The combination with a phonograph having a rotatable record carrier for supporting a record in disk form having a zone of grooves, and a tone arm having a sound reproducing stylus, of a member having a roller, carried by the tone arm and normally inoperative, for automatically engaging with the record to lift the sound reproducing stylus off the record and for moving the tone arm transversely of the record by the rotation thereof out of playing position, and means controlled by the record grooves for rendering said member and roller operative upon the completion of the playing of the record irrespective of the extent of the zone of grooves in the record.

12. The combination with a phonograph reproducing stylus, of a member having a of grooves, and a tone arm havinga sound roller, carried by the tone arm and normally inoperative, for automatically engaging With the record to lift the sound reproducing stylus olf the record and for moving the tone arm transversely of the rec'- ord by the rotation thereof out of playing position, means controlled bythe record grooves for rendering said member and roller operative upon the completion of the playing of the record irrespective of the ex tent of the zone of grooves in the record,

- and means for stopping the rotation of the record carrier controlled by the transverse movement of the tone arm out of playing position.

13. The combination with a phonograph having a rotatable record carrier for supporting a recordin diskform having a zone reproducing stylus, of a member carried by the tone arm and adapted to engage the face of the record but normally inoperative, a latch for normally holding said member inoperative, and a non-playing follower, for preventing the latch from releasing the member, for engaging the record during the playing and until after the sound reproducing stylus has traveled entirely across the zone of grooves when the continued move.

ment of the record causes the non-playing follower to permit the latch to release the member.

14. Th combination with a phonograph having a rotatable record carrier for supporting a record in disk form having a-zone of grooves, and a tone arm having a sound reproducing stylus, of a member carried by the tone arm and adapted to engage the face of the record but normally inoperative,.a tilting latch for normally holding said member inoperative, and a non-playing follower for preventing the latch from tilting to release the member for engaging the record during the playing and until after the sound reproducing stylus has traveled entirely across the zone of grooves when the continued movement of the record causes the nonplaying follower to release the member.

15. The combination with a phonograph having a rotatable record carrier for supporting a record in disk form having a zone of grooves, and a tone arm having a sound reproducing stylus, of a pivotally supported member carried by the tone arm and adapted to engage the face of the record but normally inoperative, a latch mounted to tilt at an angle to the pivotal movement of-the ivotally supported member and having a ias in one direction, a controller for-normally holding the latch in its latched position but-- permit the latch to which when operated tilts the latch and releases the pivotally supported member, and

means whereby the center of gravity of said 1 elements as a group may be shifted to per: m1t said elements to assume then normal po-. sition with respect to each other.

16. The "combination with a phonograph" having a rotatable record carrier for supporting a record in disk form having a zone .of grooves, and a tone arm having a sound troller for normally holding the latch in'its latched position but which when operated tilts the latch and releases the pivotally supported member, all of said elements being carried on the tone arm, and a pivotal connection in said tone arm to permit the outer end thereof, to be elevated so that when elevated the elements will assume their normal position with respect to each other.

17. The combination with a phonograph having a rotatable record carrier for supporting a record in disk form having azone of grooves,'and a tone arm having a sound reproducing stylus, of a pivotally supported member carried by the tone arm and adapted to engage the face of the-record but normally inoperative, a latch mounted to tilt at an angle to the pivotal movement of the pivotally supported member and having a normal bias in one direction, a sliding con troller for normally holding the latch in its latched position but which when operated tilts the latch and releases the pivotally supported member, all .of said elements being carried on the tone arm, a pivotal connection in said tone arm to permit the outer end thereof to be elevated so that when eleed member having a bias in one direction and adapted to engage the face of the record but normally inoperative, a latch mounted to tilt at an angle to the pivotal movement of the pivotally supported member and also having a normal bias in one direction, a sliding controller for normally holding the latch inits latched position but which when operated tilts the latch and releases the pivotally supported member, all

of said elements being carried by the tone arm, and a pivotal connection in the tone arm substantially parallel with the pivotal support of the pivotally supported member whereby when the outer end of the tone arm is elevated said elements are permitted to assume their normal position with respect to each other.

19. The combination with a phonograph having a rotatable record carrier for supporting a record in disk form having a zone of grooves, and a tone arm having a sound reproducing stylus, of a pivotally supported member having a bias in one direction and adapted to engage the face of the record but normally inoperative, a latch mounted I to tilt at an angle to the pivotal movement of the pivotally supported member and also having a normal bias in one direction, a

2G sliding controller for normally holding the latch in its latched position but which when, operated tilts the latch and releases the pivotally supported member, all of. said ele- -ments being carried by the tone arm, a pivotal connection in the tone arm substantially parallel with the pivotal support of the pivotally supported member whereby when the outer end ofthe tone arm is elevated said elements are permitted to assume their normal position with respect to each other, and a finger-hold. for maintaining said elements in the position which", they have assumed When lowering the said outer 

